Hi all,
a couple of weeks ago I did a clean re-install of Gentoo on my computer (to clear some leftover of heavy experimentation I did over the past months) and since then I am having issues with my Logitech G9 mouse.

The 2 problems I have are:
1) often the single clicks are interpreted as double clicks (and therefore activating things I merely wanted to select);
2) when I try to drag things the system randomly stop perceiving the holding of the mouse and therefore it drops the item on the current position of the mouse (and sometime it take the initial click-and-holding as the mentioned double click).

Do you have any suggestion on how I can debug and track the source of the issue?

I starting having the same problem a couple of weeks ago (with a wireless Logitech Performance MX mouse).

I haven't notice any "double-click" problem, but when I click-drag, it lets go after a random time (making almost impossible to reliably select large amounts of text with the mouse or do any "dragging" operations).

I have an el-cheap mouse with 5 buttons on it. It started multi clicking after several months of use. I at first "fixed" the problem by desoldering and swapping the lesser used switches and put them into button 1 and 2 positions that are by far used more than any other buttons :D

However after several, several swaps I ran out of good buttons. At this point I had to disassemble the actual switch and put some contact cleaner, and got a few more months of use out of it.

I think it's about time that I need to do this again, it started double clicking randomly again._________________Intel Core i7 2700K@ 4.1GHz/HD3000 graphics/8GB DDR3/180GB SSDWhat am I supposed watching?

I tried to clean it, but after less than three hours it started to show the problems again.

So it may indeed be an hardware problem (after all when I opened it there wasn't much of dust anyway); since I am not confident in soldering and swapping components, I think it would be better if I directly buy a new mouse.

Do you have any recommendation? I think I will return to a standard 2 bottoms + wheel since I am more a keyboard person anyway, but I am still looking for an high precision and very durable mouse.

Thank you very much.

P.S.: since I am using it on a desktop computer and I don't mind the cables on the back of the desk and I still have a free back USB port (plus the one that will free up when I will decommission the G9) and all 4 front USB port free, I think it will be more convenient to have a corded mouse even if it is to merely avoid the annoyance to have to change the batteries. _________________Marco Di Fresco
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In my experience, this points to a hardware problem. You might be able to clean the mouse button by tapping on it several times a little harder than you normally would.

If that doesn't fix it, then the button is going bad and you have a new mouse in your future.

I'm really glad you mentioned this. At first I dismissed it, because it seemed to have started suddenly and been consistent. But then I noticed it wasn't happening the other day.

After thinking about it for a few seconds, I realized I was being unusually gentle with the mouse. Since then I've verified it. It works fine as long as I'm not pressing too hard on the button. So my problem is almost certainly with the contacts. Thank you.

The problem with the above issue is that the last comments are almost a year old and some of those mention that the mouse works on other distros. It would be nice to know how if mouse fully works now and especially under Gentoo; € 29.90 may not seems much waste of money, but over the years I have already spent a lot of money on hardware that either doesn't work under Linux (HT Omega Claro II*, various TV cards, etc.) or works with limited features (on the Logitech G15 Gaming Keyboard I merely use the monitor to show some system stat on cpu/mem usage, temp and main fan speed, but for the rest I am limited on using it as a plain keyboard) therefore if it doesn't fully work, I would be better off with a plain Logitech Mouse M90 that costs € 7.99.

This is known as "contact bounce".
Difficult to overcome once it starts.
Gerard._________________To install Gentoo I use sysrescuecd.Based on Gentoo,has firefox to browse Gentoo docs and mc to browse (and edit) files.
The same disk can be used for 32 and 64 bit installs.
You can follow the Handbook verbatim.
http://www.sysresccd.org/Download

Contact bounce is one thing, it definitely is a problem in all switches. However I don't know about how USB HID works, it's possible that contact bounce is dealt with by the PC versus by the mouse itself... I was hoping bounce is dealt with by the mouse versus the PC mouse driver...

Anyone know the details? That would be interesting if the USB protocol is "fast" enough to pass along bounce info, but I kind of doubt it because of the nature of USB where the host controller needs to poll the mouse to get data (??!)._________________Intel Core i7 2700K@ 4.1GHz/HD3000 graphics/8GB DDR3/180GB SSDWhat am I supposed watching?